The International Fitness Scale (IFIS): Usefulness of self-reported fitness in youth

Francisco B. Ortega, Jonatan R. Ruiz, Vanesa España-Romero, Germán Vicente-Rodriguez, David Martínez-Gómez, Yannis Manios, Laurent Béghin, D. Molnár, Kurt Widhalm, Luis A. Moreno, Michael Sjöström, Manuel J. Castillo

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Background: We examined: (i) the usefulness of the International Fitness Scale (IFIS) to correctly rank adolescents into physical fitness levels; (ii) the capacity of the IFIS for predicting cardiovascular disease (CVD) risk; and (iii) the reliability of the IFIS in adolescents. Methods: The study comprised 3059 adolescents (aged 12.5-17.5 years) from nine European countries (HELENA study). Blood samples were collected in one-third of the participants (randomly selected, n=981). Test-retest reliability of the IFIS was studied in a separate sample of 277 adolescents. Physical fitness-cardiorespiratory fitness (CRF), muscular fitness (MF), speed-agility (SP-AG), flexibility and overall fitness-was self-reported using 5-point Likert-scale questions (1=very poor, 5=very good) and measured using standard field-based tests. The CVD risk factors measured included total/central adiposity indices and mean arterial pressure, total and high density lipoprotein cholesterol, triglycerides, insulin resistance (HOMA) and C-reactive protein. Results: Analysis of covariance showed that adolescents reporting better fitness had higher measured fitness levels for all the variables studied (all P

Original languageEnglish
Article numberdyr039
Pages (from-to)701-711
Number of pages11
JournalInternational Journal of Epidemiology
Volume40
Issue number3
DOIs
Publication statusPublished - Jun 2011

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Physical Fitness
Cardiovascular Diseases
Adiposity
Reproducibility of Results
C-Reactive Protein
HDL Cholesterol
Insulin Resistance
Arterial Pressure
Triglycerides
Cardiorespiratory Fitness

Keywords

  • Adolescent
  • Physical fitness
  • Questionnaires
  • Risk factors
  • Self-report

ASJC Scopus subject areas

  • Epidemiology

Cite this

Ortega, F. B., Ruiz, J. R., España-Romero, V., Vicente-Rodriguez, G., Martínez-Gómez, D., Manios, Y., ... Castillo, M. J. (2011). The International Fitness Scale (IFIS): Usefulness of self-reported fitness in youth. International Journal of Epidemiology, 40(3), 701-711. [dyr039]. https://doi.org/10.1093/ije/dyr039

The International Fitness Scale (IFIS) : Usefulness of self-reported fitness in youth. / Ortega, Francisco B.; Ruiz, Jonatan R.; España-Romero, Vanesa; Vicente-Rodriguez, Germán; Martínez-Gómez, David; Manios, Yannis; Béghin, Laurent; Molnár, D.; Widhalm, Kurt; Moreno, Luis A.; Sjöström, Michael; Castillo, Manuel J.

In: International Journal of Epidemiology, Vol. 40, No. 3, dyr039, 06.2011, p. 701-711.

Research output: Contribution to journalArticle

Ortega, FB, Ruiz, JR, España-Romero, V, Vicente-Rodriguez, G, Martínez-Gómez, D, Manios, Y, Béghin, L, Molnár, D, Widhalm, K, Moreno, LA, Sjöström, M & Castillo, MJ 2011, 'The International Fitness Scale (IFIS): Usefulness of self-reported fitness in youth', International Journal of Epidemiology, vol. 40, no. 3, dyr039, pp. 701-711. https://doi.org/10.1093/ije/dyr039
Ortega FB, Ruiz JR, España-Romero V, Vicente-Rodriguez G, Martínez-Gómez D, Manios Y et al. The International Fitness Scale (IFIS): Usefulness of self-reported fitness in youth. International Journal of Epidemiology. 2011 Jun;40(3):701-711. dyr039. https://doi.org/10.1093/ije/dyr039
Ortega, Francisco B. ; Ruiz, Jonatan R. ; España-Romero, Vanesa ; Vicente-Rodriguez, Germán ; Martínez-Gómez, David ; Manios, Yannis ; Béghin, Laurent ; Molnár, D. ; Widhalm, Kurt ; Moreno, Luis A. ; Sjöström, Michael ; Castillo, Manuel J. / The International Fitness Scale (IFIS) : Usefulness of self-reported fitness in youth. In: International Journal of Epidemiology. 2011 ; Vol. 40, No. 3. pp. 701-711.
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